Allow customised URL redirects

### Problem Description

On the iPhone / iOS, natively there is a problem (and a klunky manual workaround)
-- when Mobile web browsers attempt to browse www.Reddit.com postings... they get a non-functional web page and prompted to download the iOS app.
-- klunky manual workaround: edit the link to change "www.Reddit.com" to "old.Reddit.com"

### Proposed Solution

For instance:
-- When requesting urls beginning with "https://www.reddit.com/"
-- AdGuard for iOS would automatically restructure url requests beginning with "https://www.reddit.com/" to the alternate url "https://old.reddit.com/"

### Alternatives Considered

### Additional Information

Desktop web browsers can read www.Reddit.com postings without logging in to the website